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High-Definition Coding

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HDC (Hybrid Digital Coding) with SBR (spectral band replication) is a proprietary lossy audio compression codec developed by iBiquity for use with HD Radio. It replaced the earlier PAC codec in 2003. It is thought to be a modified form of MPEG-4 HE-AAC. [1][2]

References

  1. ^ Radio and WIreless: AM Bandwidth and Digital Radio
  2. ^ http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww.opticsinfobase.org%2FDirectPDFAccess%2F6D19CD0A-B7F8-3E8F-42E7EF89E42CD808_225737%2Foe-19-26-B895.pdf%3Fda%3D1%26id%3D225737%26seq%3D0%26mobile%3Dno&org= Optimization of high-definition video coding and hybrid fiber-wireless transmission in the 60 GHz band


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